Introduction
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Keywords
Primitive Types
Comments
Literals
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Strings
Console Output 
   Demo
Exercises

    Supplements
Conditional: if-else
Repetitions
Flow Control
Java vs C/C++
JVM Instructions 1

These exercises explore details of the language and provide practice at writing applets and applications. You can use the Starter_App1.java or Starter_Applet1.java frameworks to create application or applets to carry out the exercises.

1. Create a program to practice creating strings for printing out numerical values. Write code to print
   
   
   1. Example values of all 8 primitive types.
   2. Create a variable such as x, set it to value, and then use the "+" append operator to print out the value in an equation as in "x=3".
   3. Create 9 integer variables and assign each to a particular value. Then print the variables out in a matrix of 3 rows by 3 columns.
      
      
2. What will be the the values of i,j,k after the following statements labeled 1, 2, 3 and 4? Write a program to test your predictions.:
   
      int i = 1;
      int j= 3;
      int k;
      k = j-- + ++i;    // 1
   
      i = 1; j = 3;
      k = ++i + j--;    // 2
   
      j = 3;
      k = j-- + ++j;    // 3
   
      j = 3;
      k = --j + j++;    // 4
   
   
3. Predict what the output of the following code snippet will be and then test your prediction with a program
   
      int j=0;
      int i=1;
      for(; i < 2; i++) j++;
      System.out.println("i= "+ i + " j= "+j);
   
   
      i=0;
      j=5;
      do{
         j--;
      } while( (i++) < 5);
      System.out.println("i= "+ i + " j= "+j);
   
   
      j=5; i=0;
      while( (i++) < 5){
         j--;
      }
      System.out.println("i= "+ i + " j= "+j);
   
   

References & Web Resources

• Solving Common Coding Problems - Sun Java Tutorial

Latest update: Dec.11.2003

            Tech
Arithmetic Ops
Math Class
More on Integers
FP : Overview
FP : Java  
  Demo 1
More Mix/Cast
  Demo 2
Exercises

           Physics
Differential Eq.
Euler Method
  Demo 1
Predictor-Corrector
  Demo 2
Exercises